package com.threeox.httplibrary.request;

import com.threeox.httplibrary.callback.Callback;
import com.threeox.httplibrary.utils.Exceptions;

import java.util.Map;

import okhttp3.Headers;
import okhttp3.Request;
import okhttp3.RequestBody;

/** 
 *
 * @ClassName: OkHttpRequest
 *
 * @Description: Todo(请求的抽象类)
 *
 * @author 赵屈犇
 *
 * @date 创建时间:2016/12/21 11:18 
 * 
 * @version 1.0
 */
public abstract class OkHttpRequest {

    protected String url;
    protected Object tag;
    protected Map<String, Object> params;
    protected Map<String, Object> headers;
    protected int id;

    protected Request.Builder builder = new Request.Builder();

    protected OkHttpRequest(String url, Object tag,  Map<String, Object> params, Map<String, Object> headers,int id) {
        this.url = url;
        this.tag = tag;
        this.params = params;
        this.headers = headers;
        this.id = id ;
        if (url == null) {
            Exceptions.illegalArgument("必须传入URL");
        }
        initBuilder();
    }

    /**
     * 初始化一些基本参数 url , tag , headers
     */
    private void initBuilder() {
        builder.url(url).tag(tag);
        appendHeaders();
    }

    protected abstract RequestBody buildRequestBody();

    protected RequestBody wrapRequestBody(RequestBody requestBody, final Callback callback) {
        return requestBody;
    }

    protected abstract Request buildRequest(RequestBody requestBody);

    public RequestCall build() {
        return new RequestCall(this);
    }


    public Request generateRequest(Callback callback) {
        RequestBody requestBody = buildRequestBody();
        RequestBody wrappedRequestBody = wrapRequestBody(requestBody, callback);
        Request request = buildRequest(wrappedRequestBody);
        return request;
    }


    protected void appendHeaders() {
        Headers.Builder headerBuilder = new Headers.Builder();
        if (headers == null || headers.isEmpty()) return;
        for (String key : headers.keySet()) {
            headerBuilder.add(key, String.valueOf(headers.get(key)));
        }
        builder.headers(headerBuilder.build());
    }

    public int getId() {
        return id;
    }

    public String getUrl() {
        return url;
    }
}
